MANUALS
--------------------------------------------------------------------

http://hondatech.info/downloads/Auto...e/Prelude%204/

http://www.hondatech.com.au/links/browselinks.php?c=8

MODELS RELEASED IN AUSTRALIA
S - F22A engine
SI - H23A engine
Si SRS - H23A engine with airbags
Vtir - H22A Vtec engine

IMPORT MODEL
Si-Vtec - H22A Vtec engine

CHASSIS MODELS

BA8
BA9
BB1
BB4

ENGINE CODES
--------------------------------------------------------------------
0 ECU
1 Oxygen Sensor
3 MAP sensor
4 Crank angle sensor
5 MAP sensor
6 Coolant Temp
7 Throttle Angle
8 TDC Sensor
9 CYL sensor
10 Intake Air Temp Sensor
11 IMA
12 EGR
13 Atmospheric Pressure
14 Electronic Air Control EACV
15 Ignition output signal
16 Fuel Injector
17 Vehicle speed sensor
20 Electrical Load Detector
21 VTEC spool valve
22 VTEC pressure switch
23 Knock sensor
30 Auto FI signal A
31 Auto FI signal B
41 Oxygen Sensor Heater
43 Fuel Supply System


SRS CODES
--------------------------------------------------------------------
1-1 Open in drivers side airbag infaltor or increased resistance
1-2 Short in another wire in drivers airbag inflator or decreased resistance
1-3 Short to power in drivers side airbag inflator
1-4 Short to ground in drivers airbag inflator
2-1 Open in the passengers airbag inflator or increased resistance
2-2 Short in another wire in passengers airbag inflator or decreased resistance
2-3 Short to power in passengers side airbag inflator
2-4 Short to ground in passengers airbag inflator
5-1 Internal failure in SRS unit
10-1 SRS unit replacement code (SRS unit to be thrown out)
9-1 (none) faulty SRS indicator circuit or faulty SRS supply system


4WS CODES
--------------------------------------------------------------------

10-19 Sub Steering Angle Sensors
20-29 Main Steering Angle Sensors
30-39 Wheel Speed
40-46 4WS Control Unit
50-51 Control Logic
60-65 Power Unit
71-74 Temporary Driving Conditions


ABS CODES
--------------------------------------------------------------------
1-0 Pump Motor over-run (or pressure switch)
1-2 Pump Motor cct Problem (or motor relay, unit fuse, motor fuse)
1-3 High Pressure Leakage (or solenoid)
1-4 Pressure Switch
1-8 Accumulator gas leakage
2-1 Parking Brake switch-related problem (or brake fluid level, brake light)
3-1 pulsers
3-2 pulsers
3-4 pulsers
4-1 Speed Sensor
4-2 Speed Sensor
4-4 Speed Sensor
4-8 Speed Sensor
5-0 Speed Sensor (or modulator )
5-4 Speed Sensor (or modulator )
5-8 Speed Sensor (or modulator )
6-0 Fail Safe relay open/short (or front or rear fail safe relay)
6-1 Fail Safe relay open/short ( or front fail-safe relay)
6-4 Fail Safe relay open/short ( or rear fail-safe relay)
7-1 Solenoid related problem (open) ( orABS B1 fuse or fail-safe relay)
7-2 Solenoid related problem (open) (or real fail-safe relay)
7-4 Solenoid related problem (open)

ECU PINOUTS
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OBDI 93-95 H22A1
=================================

Pin---Color---------Desc.
A1----brn-----------Injector #1
A2----yel-----------Injector #4
A3----red1---------Injector #2
A4----grn/yel------VTEC Solenoid Valve
A5----blu-----------Injector #3
A6----or/wht-------HO2S heater coil
A7----grn/blk1-----PGM-FI Main Relay coil
A8----grn/blk2-----Shorted to A7
A9----blk/blu-------IAC Valve
A10
A11----red2--------EGR Control Solenoid
A12----blu/red-----Condenser Fan Relay
A13----blu/wht-----MIL
A14
A15----red/blu-----A/C Clutch Relay
A16----wht/grn-----Alternator
A17----pink---------IAB Solenoid Valve
A18----orn/red-----FAS (A/T)
A19----wht----------Intake Control Solenoid Valve
A20----red/grn-----EVAP Purge Control Solenoid
A21----yel/grn1----ICM
A22----yel/grn2----Shorted to A21
A23----blk1---------GND
A24----blk2---------GND
A25----yel/blk------PGM-FI Main Relay (power)
A26----blk/red------VTEC Pressure Switch (GND)

B1----yel/blk--------PGM-FI Main Relay (power)
B2----brn/blk-------GND
B3----orn1----------AFSA (A/T)
B4----pnk-----------AFSB (A/T)
B5----blu/blk--------To A/C Switch
B6
B7----lt grn---------ATP PN Gear Posisiton (A/T)
B8----red/grn-------PSP Switch
B9----blu/red-------Starter Cut Relay
B10---orn2----------VSS
B11---orn3----------CYP
B12---wht-----------CYP
B13---orn/blu-------TDC
B14---wht/blu-------TDC
B15---blu/grn-------CKP
B16--blu/yel--------CKP

D1----wht/yel-------Battery
D2----grn/wht1-----Brake Switch
D3----red/blu-------KS
D4----brn/wht------SCS
D5
D6----lt blu or lt grn-VTEC Pressure Switch
D7----lt grn/red----Data Link Connector
D8
D9----wht/red------ALT
D10---grn/blk------ELD
D11--red/blk-------TP Sensor
D12---wht/blk------EGR Valve Lift Sensor
D13---yel/blu-------ECT Sensor
D14---wht----------HO2S Sense
D15---red/yel------IAT Sensor
D16
D17---wht/blu------MAP Sensor
D18---lt grn/blk----VREF (A/T)
D19---red/wht------EGR Valve Lift Sensor
D20---yel/wht------TP Sensor
D21---blu/wht------MAP Sensor
D22---grn/wht2----TP Sensor


OBDII 96 H22A1
=================================

Pin---Color ---------Desc.
A1----yel------------Injector #4
A2----blu------------Injector #3
A3----red------------Injector #2
A4----brn------------Injector #1
A5----orn/blu-------Secondary O2 heater
A6----blk/wht-------HO2S heater
A7----orn------------EGR Control Solenoid Valve
A8----grn/yel-------VTEC Solenoid Valve
A9----brn/blk-------GND (dig)
A10---blk------------GND (power)
A11---yel/blk-------PGM-FI Power
A12---blk/blu-------Idle Air Control Valve
A13
A14
A15---red/yel-------Evap Purge Control Solenoid Valve
A16---grn/orn-------Fuel Pump Relay
A17---pnk/blu-------A/C Clutch Relay
A18---gry/red-------MIL
A19---wht/grn-------ALT
A20---yel/grn--------ICM
A21
A22---brn/blk--------GND (dig)
A23---blk------------GND (power)
A24---yel/blk--------PGM-FI Power
A25---wht-----------Intake Control Solenoid Valve
A26---red/blu-------IAB Control Solenoid Valve
A27---grn-----------Radiator Fan Relay
A28---grn/wht------EVAP Bypass Solenoid Valve
A29---orn/grn------Evap control cansiter vent shut valve
A30
A31-
A32-

C1---lt grn/blk------Ref. Voltage for ATTS or TCM (not used)
C2---blu------------CKP Detect
C3---grn------------TDCP Detect
C4---yel------------CKP Detect
C5---blu/orn-------A/C Switch Signal Input
C6---blu/red-------Starter Switch Input
C7---red/wht-------SCS
C8---lt grn ---------K Line (scan tool)
C9-- -
C10---wht/yel------ECM Backup Power
C11-- -
C12---wht----------CKP GND
C13---red----------TDC M Side
C14---blk----------CYP M Side
C15---blu/blk------VTEC Pressure Switch
C16---grn----------P/S Pressure Switch
C17---wht/grn-----ALT Detect signal
C18---blu/wht------VSS Signal
C19 -
C20 - -
C21 - -
C22---brn/yel------IMO Immobilizer Code Signal
C23- -
C24 - -
C25 - -
C26 - -
C27 - -
C28 - -
C29 - -
C30 - -
C31 - -

D1----red/blk----------TPS Detect
D2----red/wht---------ECT Engine Coolant Temp. Detect
D3----red/grn---------MAP Detect
D4----yel/red----------Vcc1 (Power for MAP)
D5----wht/blk----------BKSW Brake Switch Detect
D6----red/blu----------KS (Knock Sensor Detect)
D7----wht--------------HO2S Detect
D8----red/yel----------IAT Intake Air Temp Detect
D9----wht/blk----------EGR Valve Lift Sensor
D10---yel/blu----------Vcc2 (Provides Sensor Voltage)
D11---grn/blk----------SG2 (Sensor Ground)
D12---grn/wht---------SG1 (Sensor Ground)
D13- -
D14---wht/red---------SHO2S (Secondary O2 Sensor Detect)
D15---wht/blu---------PTANK (Detects fuel tank pressure signal)
D16---grn/red---------EL (Detects ELD Signal)



OIL CAPACITY
---------------------------------------------------------------------

H22a1, H22a2
5.9 L for engine overhaul
4.8 L oil change including filter
4.5 L oil change without filter

H23a1, H23a2
5.4 L for engine overhaul
4.3 L oil change including filter
4.0 L oil change without filter

F20a4, F22a1, F22a2
4.9 L for engine overhaul
3.8 L oil change including filter
3.5 L oil change without filter

OIL RECOMMENDATIONS (according to Honda)
----------------------------------------------------------------------

All engines
5w30*,10w30, 10w40, 15w40, 15w50, 20w40,20w50

* not recommended for h22a1 and h22a2 engines unless in subzero
temperatures

Oil must be of API service SF,SG or SH quality.

COOLANT CAPACITY
----------------------------------------------------------------------

H22a1, H22a2
Manual 7.8 for overhaul
Manual 4.2 for coolant change

H23a1, H23a2
Manual 7.6 for overhaul
Manual 4.0 for coolant change
Auto 7.3 for overhaul
Auto 3.7 for coolant change

F20a4, F22a1, F22a2
Manual 7.1 for overhaul
Manual 3.5 for coolant change
Auto 7.0 for overhaul
Auto 3.4 for coolant change

IDLE SPECIFICATIONS
-----------------------------------------------------------------------

H22a1
Manual 700 +/- 50

H22a2
Manual 790 +/- 50

H23a2
Manual 780 +/- 50
Auto 780 +/- 50 (neutral or park)

H23a1, F22a1
Manual 700 +/- 50
Auto 700 +/- 50 (neutral or park)

F20a4,F22a2
Manual 770 +/- 50
Auto 770 +/- 50 (neutral or park)

PISTONS
-------------------------------------------------------------------------

Bore and Stroke

H22a1, H22a2 87mm * 90.7mm
H23a1, H23a2 87mm * 95.0mm
F22a1, F22a2 85mm * 95.0mm
F20a4 85mm * 88.0mm

COMPRESSION RATIOS

H22a1, H22a2 10.0:1
H23a1, H23a2 9.8:1
F22a2 8.9:1
F22a1 8.8:1
F20a4 9.5:1

FUEL

h22a1, h23a2, h23a1, f20a4 95 RON +
h22a2 91 RON +
f22a1 91 RON +
f22a2 91 RON +

TRANSMISSION GEAR RATIOS
-------------------------------------------------------------------------

MANUAL

H22a1, H22a2
1st 3.307
2nd 1.950
3rd 1.360
4th 1.071
5th 0.870
Rev 3.00

H23a1, H23a2
1st 3.307
2nd 1.809
3rd 1.269
4th 0.966
5th 0.757
Rev 3.00

F22a2
1st 3.307
2nd 1.809
3rd 1.230
4th 0.933
5th 0.757
Rev 3.00

F20a4, F22a1
1st 3.307
2nd 1.809
3rd 1.269
4th 0.966
5th 0.787
Rev 3.00

AUTOMATIC

F22a2
1st 2.705
2nd 1.428
3rd 1.028
4th 0.731
Rev 2.047

f20a4, f22a1,h23a1,h23a2
1st 2.705
2nd 1.366
3rd 1.028
4th 0.750
Rev 2.047

TRANSMISSION OIL CAPACITY
-------------------------------------------------------------------------

Manual (Honda MTF Recommended)

1.9 L for oil change
2.0 L for overhaul

Auto (Honda ATF Recommended)
2.0 L for oil change
6.0 L for overhaul

CURB WEIGHTS
--------------------------------------------------------------------------

2.2 L Vtec Manual 1280kg
2.3 L Manual with ABS, 4WS 1245kg
2.3 L Auto with ABS, 4WS 1270kg
2.3 L Manual with ABS 1225kg
2.3 L Auto with ABS 1250kg
2.0 L Manual with ABS 1210kg
2.0 L Auto with ABS 1235kg
2.0 L Manual 1195kg
2.0 L Auto 1220kg

Brake Pads
----------------------------------------------------------------------------
S, SI Front, DB1268
Vtir Front, DB1206
All Rear, DB1265


BULB Sizes
----------------------------------------------------------------------------

Low Beam = H4
High Beam = H1
Fog Lights = H3
Parkers = T10
Front Indicators = T20
Side indicators = T10
Rear Indicators = BA15S
Number Plate Lights = T10
Reverse Lights = BA15S
Brake Lights = BAY15D
Boot Light = Festoon
Door Lights = Festoon
Rear Roof Light = Festoon
Front Map Lights = T10
92-93 Cluster Lights = T5

SPARK PLUGS
----------------------------------------------------------------------------

ZFR6F-11 - stock
ZFR7F-11 - 1 step colder